package com.sptpc.demo.service.impl;

import com.sptpc.demo.model.Drink;
import com.sptpc.demo.model.Order;
import com.sptpc.demo.repository.DrinkRepository;
import com.sptpc.demo.repository.OrderRepository;
import com.sptpc.demo.service.IOrderService;
import org.joda.money.CurrencyUnit;
import org.joda.money.Money;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Example;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.List;


@Service
public class OrderJpaService implements IOrderService {

    @Autowired
    private DrinkRepository drinkRepository;
    @Autowired
    private OrderRepository orderRepository;

    @Override
    public void addOrder(Order order, List<Integer> items) {
        order.setState(0);
        List<Drink> drinks= drinkRepository.findAllById(items);
        order.setItems(drinks);
//        BigDecimal sum=BigDecimal.ZERO;
//        for (Drink drink : drinks) {
//            sum=sum.add(drink.getPrice().getAmount());
//        }
         BigDecimal priceNum= drinks.stream()
                 .map(drink -> drink.getPrice().getAmount())
                 .reduce(BigDecimal.ZERO, (p1, p2) -> p1.add(p2));
        order.setPrice(Money.of(CurrencyUnit.of("CNY"),priceNum));

        orderRepository.save(order);
    }

    @Override
    public void deleteOrder(Integer id) {
            orderRepository.deleteById(id);
    }

    @Override
    public List<Order> getOrdersByCustomer(String customer) {
        Order order=new Order();
        order.setCustomer(customer);
        order.setState(1);
        Example<Order> example=Example.of(order);
        return orderRepository.findAll(example);
    }

    @Override
    public Order getOrderById(Integer id) {
        return orderRepository.findById(id).orElse(null);

    }

    @Override
    public void updateOrder(Order order) {
        orderRepository.save(order);
    }
}
